Question to those who have printed large objects from:
- metal (bronze or steel)
- wood (not plywood, but actual wood with no additives in it)
- cement (actually soil, clay, Portland cement mix)

Let's assume I need to printed 1 meter by 1 meter by 1 meter object (like a cube) that is curved and have small hollow areas in it.
How much would it cost to produce an item from materials above, considering for each design i want to print 10 copies? (I mean materials, not the printer cost)?

Can such printers be operated by one person, non-technical?

Thank you.